For years, we’ve been writing about the now-rapidly growing practice of retailers scanning IDs when customers make returns. It’s never been clear exactly what information is taken when your card is swiped, but we now know that the data could basically include everything on your driver’s license.

According to The Retail Equation (TRE), the company that provides this ID-scanning and anti-fraud database service, it uses “several pieces of information from IDs to ensure accurate consumer identification… Typically, this includes identification number, name, address, date of birth and expiration date.”